Freeman Dyson is one of the world’s greatest minds. He is also a staunch believer in the need for ‘heretics’ – in this 2005 lecture at Boston University, he argues for the necessity of heretical thinking, and goes on to list his own heresies:
For those without the time or internet connection to view the entire hour-long video, you can also read Dyson’s essay for Edge on the same topic.
(h/t Inannawhimsey)